The Great Battle (Korean: 안시성; Hanja: 安市城; RR: Ansi-seong; lit. Ansi Fortress) is a 2018 South Korean historical epic action film directed by Kim Kwang-sik. It stars Zo In-sung, Nam Joo-hyuk, and Park Sung-woong. The film was released in South Korea on September 19, 2018. Since the film is about a Korean historical battle called The Great Battle, the director had to research to gain more insights about the historical event. The director also focused on casting generally young actors to film the scenes, given that the movie consisted of a lot of action scenes. While some audiences complimented the movie, some criticized it due to its lack of historical accuracy. Nevertheless, the movie was considered successful for surpassing its break-even point and earning over US$41.5 million gross from 5.4 million admissions. Nam Joo-Hyuk, who played as the role of soldier in the movie, received the Best New Actor award from the 38th Korean Association of Film Critics Awards.